Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mitigation of volume changes of ultra-high performance concrete (UHPC) by using super absorbent polymers
Autogenous shrinkage is one of the major sources of volume changes in UHPC (Ultra-High Performance Concrete), which leads to the development of eigenstresses as well as stresses due to external restraints, and finally to concrete cracking. The internal curing of concrete using small, well distributed water reservoirs seems to be able to solve this problem. In this research project, the effects of the internal curing by using SAP (Super Absorbent Polymers) on autogenous shrinkage and other properties of a self-compacting UHPC were investigated. The results of the investigation display that the autogenous shrinkage after concrete setting was strongly reduced by the internal curing, while rheological properties of fresh concrete and the strength of hardened concrete did not change negatively upon adding SAP if the right amount of extra water was added for the purpose of internal curing.
Mitigation of volume changes of ultra-high performance concrete (UHPC) by using super absorbent polymers
Autogenous shrinkage is one of the major sources of volume changes in UHPC (Ultra-High Performance Concrete), which leads to the development of eigenstresses as well as stresses due to external restraints, and finally to concrete cracking. The internal curing of concrete using small, well distributed water reservoirs seems to be able to solve this problem. In this research project, the effects of the internal curing by using SAP (Super Absorbent Polymers) on autogenous shrinkage and other properties of a self-compacting UHPC were investigated. The results of the investigation display that the autogenous shrinkage after concrete setting was strongly reduced by the internal curing, while rheological properties of fresh concrete and the strength of hardened concrete did not change negatively upon adding SAP if the right amount of extra water was added for the purpose of internal curing.
Mitigation of volume changes of ultra-high performance concrete (UHPC) by using super absorbent polymers
Senkung der Volumenänderungen von Ultrahochleistungsbeton (UHPC) durch Anwendung von superabsorbierenden Polymeren
Dudziak, Lukasz (Autor:in) / Mechtcherine, Viktor (Autor:in)
2008
8 Seiten, 6 Bilder, 3 Tabellen, 3 Quellen
Aufsatz (Konferenz)
Englisch
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